21744968

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:330

約数の個数: 64

約数和(自身を含む): 49766400

約数和(自身を除く): 28021432

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 107, 133, 152, 191, 214, 266, 382, 428, 532, 749, 764, 856, 1064, 1337, 1498, 1528, 2033, 2674, 2996, 3629, 4066, 5348, 5992, 7258, 8132, 10696, 14231, 14516, 16264, 20437, 25403, 28462, 29032, 40874, 50806, 56924, 81748, 101612, 113848, 143059, 163496, 203224, 286118, 388303, 572236, 776606, 1144472, 1553212, 2718121, 3106424, 5436242, 10872484, 21744968]

約数ペア:

[(1, 21744968), (2, 10872484), (4, 5436242), (7, 3106424), (8, 2718121), (14, 1553212), (19, 1144472), (28, 776606), (38, 572236), (56, 388303), (76, 286118), (107, 203224), (133, 163496), (152, 143059), (191, 113848), (214, 101612), (266, 81748), (382, 56924), (428, 50806), (532, 40874), (749, 29032), (764, 28462), (856, 25403), (1064, 20437), (1337, 16264), (1498, 14516), (1528, 14231), (2033, 10696), (2674, 8132), (2996, 7258), (3629, 5992), (4066, 5348)]